Rotary grinding stone
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Description
FIG. 1 is a perspective view of a rotary grinding stone having a centrally disposed hole according to the new design.
FIG. 2 is a front side view of the rotary grinding stone of FIG. 1;
FIG. 3 is a right side view of the rotary grinding stone of FIG. 1;
FIG. 4 is a rear side view of the rotary grinding stone of FIG. 1;
FIG. 5 is a left side view of the rotary grinding stone of FIG. 1;
FIG. 6 is a top view of the rotary grinding stone of FIG. 1;
FIG. 7 is a bottom view of the rotary grinding stone of FIG. 1; and,
FIG. 8 is a cross-sectional view of the rotary grinding stone of FIG. 1, taken at section A—A in FIG. 6.
Claims
The ornamental design for a rotary grinding stone, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
3019570 | February 1962 | Olton |
D196447 | October 1963 | Zuzelo |
4023313 | May 17, 1977 | LeBlanc |
- Japanese Publication dated Dec. 2, 1998.
Patent History
Patent number: D491961
Type: Grant
Filed: May 12, 2003
Date of Patent: Jun 22, 2004
Assignee: Shinano Electric Refining Co., Ltd. (Tokyo)
Inventor: Kenichi Kazama (Kamiminochi-gun)
Primary Examiner: Antoine D. Davis
Attorney, Agent or Law Firm: Morgan, Lewis & Bockius LLP
Application Number: 29/181,410
Type: Grant
Filed: May 12, 2003
Date of Patent: Jun 22, 2004
Assignee: Shinano Electric Refining Co., Ltd. (Tokyo)
Inventor: Kenichi Kazama (Kamiminochi-gun)
Primary Examiner: Antoine D. Davis
Attorney, Agent or Law Firm: Morgan, Lewis & Bockius LLP
Application Number: 29/181,410
Classifications